399241101 has 16 divisors (see below), whose sum is σ = 610689024. Its totient is φ = 227267184.

The previous prime is 399241097. The next prime is 399241121. The reversal of 399241101 is 101142993.

It is not a de Polignac number, because 399241101 - 2² = 399241097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399241121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30621 + ... + 41666.

It is an arithmetic number, because the mean of its divisors is an integer number (38168064).

Almost surely, 2^399241101 is an apocalyptic number.

It is an amenable number.

399241101 is a deficient number, since it is larger than the sum of its proper divisors (211447923).

399241101 is a wasteful number, since it uses less digits than its factorization.

399241101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72560.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 399241101 is about 19981.0185175831. The cubic root of 399241101 is about 736.3400367615.

The spelling of 399241101 in words is "three hundred ninety-nine million, two hundred forty-one thousand, one hundred one".